CVE-2019-11757

When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.mozilla.org/security/advisories/mfsa2019-35/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-34/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1577107	Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-33/	Vendor Advisory
https://security.gentoo.org/glsa/202003-10	Third Party Advisory
https://usn.ubuntu.com/4335-1/	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox_esr::::::::
	cpe:2.3:a:mozilla:thunderbird::::::::
	cpe:2.3:a:mozilla:firefox::::::::

Configuration 2 (hide)

cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*

Information

Published : 2020-01-08 12:15

Updated : 2023-02-01 09:10

NVD link : CVE-2019-11757

Mitre link : CVE-2019-11757

JSON object : View

CWE

CWE-416

Use After Free

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Products Affected

mozilla

firefox
firefox_esr
thunderbird

canonical

ubuntu_linux

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